Add 56/5 and 3/81
1st number: 11 1/5, 2nd number: 3/81
56/5 + 3/81 is 1517/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 5 × 81 = 405,
56/5 = 56 × 81/5 × 81 = 4536/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
3/81 = 3 × 5/81 × 5 = 15/405 - Add the two like fractions:
4536/405 + 15/405 = 4536 + 15/405 = 4551/405 - 4551/405 simplified gives 1517/135
- So, 56/5 + 3/81 = 1517/135
In mixed form: 1132/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/5+6/81 56/10+3/81 56/5+9/81 56/15+3/81 56/5+15/81 56/25+3/81 56/5+21/81 56/35+3/81